The service operation manual describes practices for the management of the service operation. This includes instructions on the effective and efficient delivery of as well as support for the services in order to ensure the actual added value for the customer and consequently also for the service provider. Ultimately the strategic objectives are achieved in the day-to-day business through service operation, making this lifecycle the critical skill of the service provider. The manual contains instructions on how to maintain the service stability and allows for changes in the areas of design, scaling, scope and service level.